arXiv Analytics

Sign in

arXiv:1407.1583 [astro-ph.HE]AbstractReferencesReviewsResources

Large-scale distribution of cosmic rays in right ascension as observed by the Yakutsk array at energies above $10^{18}$ eV

A. A. Ivanov, A. D. Krasilnikov, M. I. Pravdin, A. V. Sabourov

Published 2014-07-07Version 1

We present the results of searches for anisotropy in the right ascension ($RA$) distribution of arrival directions of cosmic rays (CRs) detected with the Yakutsk array during the 1974--2008 observational period in the energy range above $10^{18}$ eV. Two methods of analysis are applied to two sub-samples of the data. Particularly, estimations of the first and second harmonic amplitudes are given, as well as the first harmonic phase in adjacent energy intervals. Analysis of variance demonstrates a significant contraction of the minimal width of the $RA$ distribution in the energy bin $(10^{19},1.78\times10^{19})$ eV with respect to the isotropic distribution, which may be attributed to a possible source of CRs within the interval $RA\in(15^0,45^0)$.

Comments: 8 pages, 6 figures, 2 tables, accepted for publication in Astroparticle Physics
Journal: Astroparticle Physics 62 (2015) 1
Categories: astro-ph.HE
Related articles: Most relevant | Search more
arXiv:1308.5241 [astro-ph.HE] (Published 2013-08-23)
From 10 Kelvin to 10 TeraKelvin: Insights on the Interaction Between Cosmic Rays and Gas in Starbursts
arXiv:1501.00711 [astro-ph.HE] (Published 2015-01-04)
Regions of an excessive flux of cosmic rays according to data of the FIAN and MSU arrays
arXiv:1712.09756 [astro-ph.HE] (Published 2017-12-28)
Multi-wavelength Signatures of Cosmic Rays in the Milky Way